Vapor feed for carburetors



E. P. REILLEY.

VAPOR FEED FOR CARBURETORS.

APPLICATION FILED SEPT. 8. 1917.

Patented Mar. 14, 1922.

' EDWARD P. VREIIJI'JEY, OF CLEVELAND, OHIO.

vAroarEED ron cARBUnEToRs.

Specification of Letters Patent.

Patented Mar. 14, 1922,

Application led September 8, 1917. Serial No. 190,364.

To all whom 'it may concern:

Be it known that I, EDWARD P. REILLEY, a' citizen of the United States, and resident of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Vapor Feed for Carburetors, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

The .objects of the invention are to provide means for drawing air, charged wlth vapor, into the mixing chamber of the carburetor of an explosive engine, whereby a number of advantageous results are obtained.

The addition of the water vapor. 1n a superheated form, when it is commlngled with the vapor of gasoline, does not interfere with the power of the explosion, and tends to prevent the deposit of carbon as a hard substance upon the sides of the cyl1nder. It also prevents a previously formed carbon deposit from becoming incandescent, and causing the premature firing of the charge.

The vaporized Water is applled to the air inlet passage of the carburetor, instead of to the intake pipe between the carburetor and cylinders, thus improvlng the mixture by previous comingling in the carburetor, and also preventing the loss of vacuum when the linlet pipe becomes accidentally broken. The employment of this additional amount of vapor adds greatly to the eiiclency of the motor, in making it run more smoothly, and in the increase of power obtained. It also reduces the amount of valve grinding required and the amount of frictional resistance throughout the engine.

The invention comprises,a pipe or passage for directing the vapor accumulated in the top of the radiator into the air inlet opening of the carburetor and trapping coils in the pipe which encircle the exhaust and serve as heating coils which deliver the vapor to the carburetor in a superheated state.

It also comprises a lvalve float in the top of the radiator by means of which cold water is prevented from entering the vapor feed pipe, when its level is raised above the inlet opening leading thereto.

The invention further includes the combination and arrangement of parts and construction of details, hereinafter described,

shown in the accompanying drawings and specifically pointed out in the claims.

In the accompanying drawings, Fig. 1 is a side elevatlon of an automobile engine, showmg the radiator and cylinders and carburetor, and showing the vapor feed pipe entering the air inlet to the carburetor, and colled about the exhaust pipe.

F1g.2 1s an enlarged vertical section ofthe top of the radiator, showing the upper ends of the overflow pipe and vapor feed pipe and the float valve which alternately opens and closes the inlet openings leading thereto.

Flg. 3 is a plan View thereof.

In these views A represents the radiator. B the cylinders. C the exhaust pipe. D the carburetor. E- the -air inlet passage leading to the carburetor. F is the overiow pipe in the radiator.l G is the divided vapor feed p1p e the engme and radiator extremities of whlch are connected by means of a flexible ,tube G', shown in Fig. l, leading from the top of the radiator, where accumulates as soon as heated, and heats the encirclin the cylinders, the heated water flowing t rough the pipes H. The return is not shown since it is well known in common use. I is a coil upon the feed pipe which encircles the exhaust pipe C, and finally enters the air the mixing chamber. In some engines the coil can not be made to encircle the exhaust pipe and hence can be coiled on top thereof.

The vapor feed pipe is provided with an inlet openuing J at its upper extremity and at its lower extremity is provided with an outlet opening K which projects preferably. axially of the air inlet pipe E. The force of the vacuum which draws in the air and gasoline vapor into the carburetor will also draw the water vapor into the carburetor. A certain amount of steam pressure will also accumulate in the intake source since each va or quickly the engine becomes water in the `jackets lpipe is closed at its upper end.

The vapor feed pipe is coiled about the exhaust pipe at I so as to absorb the'heat therefrom, which quickly superheats the vapor in the feed pipe since the coil is closely applied thereto. This coil serves also as a trap in which the vapor when condensed accumulates to prevent water from entering the carburetor. The valve M is a float and rises when the water level in the radiator rises and cuts ofi the inlet opening J in the vapor feed pipe, and simultaneously inlet passage leading to uncovers the outlet opening P, leading to the overflow thus permitting the excess of water to escape. Sleeves N, O on the float permit adjustment of the respective overoxv levels. When the float falls, it uncovers the opening in the vapor feed pipe and covers the opening in the overow pipe.

Having described tlie invention what I claim as new and desire to secure by Letters Patent is:

1. In an explosion engine, provided with cylinders, a circulating water passage, and a radiator, and an exhaust pipe, and carburetor, the combination therewith, of a feed pipe leading from the upper end of said radiator to said carburetor, said feed pipe having an opening above the normal level of water in said radiator, and a float valve in said radiator for closing said opening in said feed pipe when the water level rises above the normal.

2. In combination with the radiator and carburetor -of an explosion engine, a feed pipe for water vapor connecting the uppei` end of said radiator with said carburetor, an overflow 'pipe in said radiator, and a oat valve adapted to alternately open and close the entrance to said feed and overflow ipes.

3. n an explosion engine, a radiator and a carburetor therefor, said carburetor prosaid radiator with said air admission passa e, an overfiow pipe in said radiator, said feed and overflow pipes having lateral openings, a fioat in said radiator having adjustable sleeves through which said pipes pass, said float serving to alternately cover and uncover said lateral openings.

4. In an explosion engine having a radiator, an exhaust pipe and a carburetor, said carburetor having an air inlet passage, a feed ipe leading from said radiator above water evel to said air inlet Vpassage in said carburetor, a coil in said pipe encircling said eX- haust pipe and a exible connection in said feed pipe, an outlet pipe in said radiator, and an automatically acting float valve for simultaneously opening the entrance to said feed pipe and closing the entrance to said overflow pipe and alternately therewith` closing the entrance to said feed pipe and opening the entrance to said overfiow pipe.

Y In testimony whereof, I hereunto set my hand this 11l da of August 1917.

E WARD P. REILLEY.

In presence of WM. M. MONROE, CHAs. F. SIPE. 

